Home
Class 11
MATHS
If a circle of radius r is touching the...

If a circle of radius `r` is touching the lines `x^2-4x y+y^2=0` in the first quadrant at points `Aa n dB` , then the area of triangle `O A B(O` being the origin) is (a)`3sqrt(3)(r^2)/4` (b) `(sqrt(3)r^2)/4` (c)`(3r^2)/4` (d) `r^2`

Promotional Banner

Similar Questions

Explore conceptually related problems

If a circle of radius 3 units is touching the lines sqrt3 y^2 - 4xy +sqrt3 x^2 = 0 in the first quadrant then length of chord of contact to this circle is :

If a circle of radius 3 units is touching the lines sqrt(3)y-4xy+sqrt(3)x^(2)=0 in the first quadrant then the length of chord of contact to this circle,is:

If the radisu of the circle passing through the origin and touching the line x+y=2 at (1, 1) is r units, then the value of 3sqrt2r is

The tangent at the point (alpha, beta) to the circle x^2 + y^2 = r^2 cuts the axes of coordinates in A and B . Prove that the area of the triangle OAB is a/2 r^4/|alphabeta|, O being the origin.

If the circle x^(2)+y^(2)+2ax=0, a in R touches the parabola y^(2)=4x , them

The largest area of the trapezium inscribed in a semi-circle or radius R, if the lower base is on the diameter is (3sqrt(3))/(4)R^(2)( b) (sqrt(3))/(2)R^(2)(3sqrt(3))/(8)R^(2) (d) R^(2)

Three equal circles each of radius r touch one another.The radius of the circle touching all the three given circles internally is (2+sqrt(3))r(b)((2+sqrt(3)))/(sqrt(3))r((2-sqrt(3)))/(sqrt(3))r(d)(2-sqrt(3))r

If the area of the triangle formed by the lines x=0,y=0,3x+4y-a(a>0) is 1, then a=(A)sqrt(6)(B)2sqrt(6)(C)4sqrt(6)(D)6sqrt(2)